Chivako cheAsphalt cheTTM - Mugadziri weMidziyo yeAsphalt yeNyanzvi yeKusanganisa neKudzokorodza Kubva 2004.
Chirimwa cheAsphalt Chinoshanda Sei uye Chinoramba Chiine Hukama Nezvakatipoteredza?
Wakambozvibvunza here kuti chii chinoitika kuseri kweStack?
Nguva dzese paunofamba nechikepe mumugwagwa mutsva, unenge uchityaira mota pamusoro pefekitori diki yemakemikari yaimbopisa pa180°C. Asi fekitari yeasphalt inoshanda sei, uye nei makondirakiti, vanoisa mari, kana kunyange vanofamba netsoka vachifanira kufunga nezvezvakatipoteredza? Ramba wakatarira—pakupera kwekuverenga uku kupfupi, unokwanisa kufamba uchienda kune chero nzvimbo yebasa wotaura sekunge uri wega.
Kufamba Kwebasa Kwakakosha: Kubva paAggregate kusvika paHot-Mix
Pamwoyo payo, chirimwa cheasphalt inyaya chaiyo yekubatana kwekupisa, kemesitiri, uye fizikisi yemakanika. Kurongeka kwacho kunenge kwakafanana nguva dzose:
- Mabhini ekudya anotonhora anoburitsa zvinhu zvakasanganiswa (dombo, jecha, RAP) pabhandi rekutakura zvinhu panguva yakatarwa.
- Chidzitiro cheganda chine denga rakawanda chinodhonza dombo guru kupfuura mwero—hongu, "kunze" ndizvo zvinotaurwa nevanodyara—risati rasvika padanho.
- Muchina wekuomesa unotenderera unokwidza tembiricha kusvika ±160°C ukuwo chitofu chichipisa moto kwenguva yakareba kupfuura bhazi rechikoro.
- Elevator inopisa inosimudza zvinhu zvakaomeswa pamusoro peshongwe uko zvinodonhera mumadheki anovhara uye mumabhini anopisa.
- Bitumen inopombwa kubva mumatangi anodzivirirwa nemhepo yopinzwa nepa spray bar; filler (lime, simende) inoyerwa kuti igadzirise viscosity.
- Pugmill kana kuti twin-shaft mixer inosanganisa zvese kwemasekonzi matanhatu chete—nguva inokosha nekuti asphalt inooma nekukurumidza.
- Matura ekuisira mafuta anoiswa mumidziyo anochengeta musanganiswa wekupisa wapera kusvika marori asvika, izvo zvinoita kuti fekitori irambe ichishanda zvakanaka pane kumira.
Kuchinja kubva pachikamu kuenda pakuenderera mberi? Usazvidya moyo. Midziyo yekusanganisa ngoma inopeta matanho matatu kusvika matanhatu kuita dhiramu rimwe rakareba, ichichinjana nzira chaiyo yekubika kuti iwane simba rekugadzira tani paawa imwe chete.
Zvikamu Zvikuru Zvisina Kutaurwa Nezvazvo
1. Kola yeRAP
Nzira yeasphalt pavement (RAP) yakavakwazve haingoraswi chete; inopinda nepakati pemadhiramu apo simbi yakatopiswa kusvika 180 °C inodzima hunyoro isina kupisa bitumen yekare. Inopisa zvakanyanya uye unowana utsi hwebhuruu; inotonhora zvakanyanya uye unowana tsvina inonamira, isina kubatana.
2. Nzvimbo yekutakura bhegi & Kutora zvidimbu zvechipiri
Kana gasi rinobuda mudhiramu, gomba remagetsi rinobata zvinhu zvinosvika 1 micron. Zvirimwa zvemazuva ano zvinoisa activated carbon kana lime slurry ku nail polycyclic aromatic hydrocarbons (PAHs). Mhedzisiro yacho: stack opacity iri pasi pe10%, iyo inokunda machimini mazhinji anorohwa nekofi.
3. Chifukidziro chekupisa cheSilo chinoburitswa kunze
Wakamboona here kuti mamwe ma silo anopenya zvishoma husiku? Chifukidziro chinotenderedza kupisa kwakachengetwa kwakatenderedza silo cone, zvichidzivirira "nzvimbo dzinopisa" dzinoita kuti bitumen iwedzere kuomesera uye dzinoshandura musanganiswa wako unodhura kuita popcorn inoputsika.
Kubvisa Ngano dzeZvakatipoteredza
"Zvirimwa zveasphalt zvinhu zvinotyisa zvinobvisa utsi." Mutsetse iwoyo wava kuma1970. Kubva pakatanga kushandiswa bvunzo dzeEPA Method 9, avhareji yeutsi hunobuda patani yemusanganiswa yakaderera ne97%. Zvishandiso zveNox zvishoma, madhiraivha anochinja-chinja pamota yega yega, uye zvinowedzerwa zvinodziya zvinoderedza tembiricha yekugadzira kusvika 135 °C zvese zvinowedzera. Chinhu chikuru ndechekuti: ikozvino unoburitsa fekitari shoma ye200-ton/awa kupfuura yaishandiswa nasekuru vako vachimhanyisa asphalt paver imwe chete.
Kugadzirisa Dhijitari & Kufanotaura
Masensa akabatana negore anotarisa kushushikana kwebhandi, kudedera kwemabheya, uye ionization yemoto wemoto. Mamodheru ekudzidza muchina anoratidza kusarongeka kwemavhiki mabhandi ekushandisa anotonhora asati apwanyika na2am—nditende, hapana anoda kugadzira splice netochi. Mumakore makumi maviri nemashanu ehupenyu hwefekitori, ongororo yekufanotaura inogona kuchengetedza kusvika kuUS $1.2 miriyoni munguva isina kurongwa yekushanda.
Muenzaniso weROI wePasi Pose
Dunhu reMidwestern rakachinja kubva pa100% virgin kuenda ku40% RAP mix. Mutengo wekutanga: US $180 k yeRAP collar itsva nescreen. Kubhadhara: Mwedzi gumi nemana nekuda kweUS $110 k yekuchengetedza pagore pavirgin aggregate nebitumen. Bhonasi: kuomarara kwemugwagwa kwakawedzera ne8%, nekuti bitumen yakwegura zvakanaka inoomesa mastic. Hazvina kuipa kune "marara" ayo mapepa ekare aikuudza kuti uise marara.
Kukanganisika Kunowanzoitika uye Kugadzirisa Kukuru
- Hunyoro muRAP: Chivharo chemurwi wemurwi chinosvika 3 m, fukidza ne tarps, wobva waisa pamberi pemurwi wekutanga.
- Utsi hwebhuruu: Deredza tembiricha yekupinda mudhiramu ne10°C uye tarisa chiyero chemhepo-ku-mafuta emoto weburner; kazhinji zvakawandisa.
- Kuparadzanisa mu silo: Isa chinhu chinoyerera nehukuru; chinodhura US $5 k, uye chinochengetedza matani makumi mashanu emusanganiswa unoraswa pamwedzi.
Mafambiro Emangwana Ekutarisa
Vagadziri vemafekitori vari kuedza kushandisa mahydrogen burners uye 60% RAP mixes vachishandisa bio-rejuvenators inobva mupine resin. Kana carbon credits ikaramba iri pamusoro peUS$70 patani, tarisira kuti vanotanga kugadzira vachawana mari yekuvandudza mumakore asingasviki mana. Panguva iyi, mafoam kit anodziya anogadziriswa pafekitori chero ripi zvaro riripo ari kudonha pasi peUS$30,000, zvinoreva kuti kunyangwe ma pavers madiki anogona kukwikwidza pamakondirakiti e "green highway" kana akangochengeterwa ma big boys.
